It is almost certainly already installed (UVC is extremely common, and valid for almost all off the shelf webcams).
You can verify this by running:
<span style="color:#323232;">find /lib/modules/$(uname -r) -type f -iname "*uvc*"
</span>
If not you need to compile the kernel module. Instructions for this will vary slightly depending on your distro. Here are some instructions for Debian (and coincidentally Ubuntu): wiki.debian.org/ModuleAssistant